I think King Djer of Ancient Egypt had the right idea.
When the king died many of the courtiers followed him into the afterlife as well.
I am not saying ritual sacrifice is the way forward for the Labour Party but if we had a clean sweep of Labour councillors and MPs who supported a former leader from power then we could get away from this idea of certain Labour members of trying to get hold of power, and then keep it mentality that so many of them have when they chuck their ethics and morality out of the window in the pursuit of power.
The biggest obstacle to power any party has is waiting till there is a sufficient change of guard in the running of a political party at all levels. There is a reason why people are not voting Labour, and I don't think it has much to do with policy.